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Compact Flash issue

I'm trying to use Compact Flash for the first time. Firstly I created an Axi- based system with microblaze, SysAce Interface Controller (and all the other necessary IPs) in XPS 14.3. I exported my design in SDK and I succeded in reading the sectors of CF (just like the examples).

Unfortunately, I was not able to write sectors correctly and after many efforts, I decided to format the CF with Microsoft Windows format tool (selecting FAT for file system) (bad thing(?)) . Now I'm not able neither to read nor to write. The function XSysAce_Lock always returns XST_DEVICE_BUSY.